231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a

General

Target

231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe
Size

610KB
MD5

74ed476b2e7a9fb6f81f1b6903d1d367
SHA1

07f40ebd6ec2084d4a6eb76fe7c14fcf7b2b1028
SHA256

231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a
SHA512

61b705ab1bd82cd77d5efd13c7b66b343332483f8d9ad07e8acac20f375e5a711898b0501f1b952da273fcadedee20a6d36316e5f8524bdee4cf403150667d24
SSDEEP

12288:UATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+E:KT+KjUdQqboyyWoK1NGqzuhZ

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1760	2476	WerFault.exe	102
3140	4836	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe
4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2476	winver.exe
4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 2476	4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe	102
PID 4836 wrote to memory of 2476	4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe	102
PID 4836 wrote to memory of 2476	4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe	102
PID 4836 wrote to memory of 2476	4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe	102
PID 2476 wrote to memory of 3428	2476	winver.exe	56
PID 4836 wrote to memory of 3428	4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe	56
PID 4836 wrote to memory of 2972	4836	231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2972

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3428
- C:\Users\Admin\AppData\Local\Temp\231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe
  "C:\Users\Admin\AppData\Local\Temp\231b1836d30171370fe32ccaf75405a17b3331723bbb3098acd7bc80b936eb1a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2476
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 300
      4⤵
      Program crash
      PID:1760
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4836 -s 888
    3⤵
    - Program crash
    PID:3140

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2476 -ip 2476
1⤵
PID:2204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4836 -ip 4836
1⤵
PID:1564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2972-22-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/2972-16-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/3428-7-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3428-14-0x00000000012E0000-0x00000000012E6000-memory.dmp

Filesize
24KB

Download
memory/3428-8-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/4836-4-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/4836-5-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/4836-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4836-1-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/4836-13-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/4836-3-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/4836-17-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/4836-21-0x0000000004610000-0x0000000004C68000-memory.dmp

Filesize
6.3MB

Download
memory/4836-2-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download

Analysis

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